发明名称 |
Phase stability of non-sinusoidal signals utilizing two differential halls |
摘要 |
A method and apparatus for sensing the speed and direction of a rotating target is disclosed. A first differential Hall package can be generally located opposite to a second differential Hall package, wherein the first differential Hall package and second differential Hall package comprise mirror images of one another. A first output signal can then be generated by the first differential Hall package and a second output signal by the second differential Hall package during a rotation of the rotating target. The first Hall output signal can thus be compared to the second Hall output signal during a shift of the rotating target from a sinusoidal phase to a non-sinusoidal phase thereof, thereby permitting accurate phase information indicative of the speed and direction of the rotating target to be obtained.
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申请公布号 |
US6777926(B2) |
申请公布日期 |
2004.08.17 |
申请号 |
US20020211834 |
申请日期 |
2002.08.02 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
JOHNSON CURTIS B. |
分类号 |
G01P13/04;(IPC1-7):G01P3/44 |
主分类号 |
G01P13/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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